Question

The adjacent angles of a parallelogram are (2a - 10 ) and (3a + 20) Find the angles of a parallelogram.
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Answer 1

Answer:

FIRST ANGLE=58degree

SECOND ANGLE=122degree

Step-by-step explanation:

FRIEND,

WE KNOW THE PROPERTIES OF A PARALLELOGRAM

THAT THE ADJACENT ANGLES ARE SUM TO 180degree

SO,

[(2a-10)+(3a+20)]=180

5a+10=180

a=170/5

a=34degree

SO,

2a-10=58degree

3a+20=122degree

I HOPE YOU UNDERSTOOD THE QUESTION

Answer 2

Answer:

We know that the sum of two adjacent angles of a parallelogram is 180°

Adjacent angles of parallelogram.

( 2a-10)°+(3a+20)°=180°

2a-10+3a+20=180°

5a+10=180°

5a= 180-10= 170°

a= 170/5= 34°